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linux:serial [2008/09/14 10:56] (current) faith |
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| - | ====== Serial Cable Pinouts ====== | + | ====== Cable Pinouts ====== |
| - | ===== INTEL ===== | + | ===== Ethernet ===== |
| + | |||
| + | The house ethernet standard is T568B: | ||
| + | |||
| + | ^ RJ45 Pin ^ Color ^ Pair ^ | ||
| + | ^ 1 | White/orange | 2 | | ||
| + | ^ 2 | Orange | 2 | | ||
| + | ^ 3 | White/Green | 3 | | ||
| + | ^ 4 | Blue | 1 | | ||
| + | ^ 5 | White/Blue | 1 | | ||
| + | ^ 6 | Green | 3 | | ||
| + | ^ 7 | White/Brown | 4 | | ||
| + | ^ 8 | Brown | 4 | | ||
| + | |||
| + | ===== Serial ===== | ||
| + | |||
| + | |||
| + | ==== NULL ==== | ||
| + | |||
| + | This mapping is the same for male and female connectors. | ||
| + | |||
| + | ^ DB9 Pin ^ DTE Function ^ Adapter Color ^ RJ45 Pin ^ | ||
| + | ^ 1 | CD | | | | ||
| + | ^ 2 | Rx | Yellow | 6 | | ||
| + | ^ 3 | Tx | Green | 5 | | ||
| + | ^ 4 | DTR | Blue | 1 | | ||
| + | ^ 5 | GND | Red | 4 | | ||
| + | ^ 6 | DSR | Black | 3 | | ||
| + | ^ 7 | RTS | Brown | 7 | | ||
| + | ^ 8 | CTS | Gray | 8 | | ||
| + | ^ 9 | RI | | | | ||
| + | ^ | | Orange | 2 | | ||
| + | |||
| + | ^ DB25 Pin ^ PM Function ^ Adapter Color ^ RJ45 Pin ^ | ||
| + | ^ 2 | Tx | Green | 5 | | ||
| + | ^ 3 | Rx | Yellow | 6 | | ||
| + | ^ 4 | RTS | Brown | 7 | | ||
| + | ^ 5 | CTS | Gray | 8 | | ||
| + | ^ 6 | DSR | Black | 3 | | ||
| + | ^ 7 | GND | Red | 4 | | ||
| + | ^ 20 | DTR | Blue | 1 | | ||
| + | ^ | | Orange | 2 | | ||
| + | |||
| + | ==== STD (Straight-Through) ==== | ||
| + | |||
| + | ^ DB25 Pin ^ Adapter Color ^ | ||
| + | ^ 2 | Yellow | | ||
| + | ^ 3 | Green | | ||
| + | ^ 4 | Gray | | ||
| + | ^ 5 | Brown | | ||
| + | ^ 6 | Blue | | ||
| + | ^ 7 | Red | | ||
| + | ^ 20 | Black | | ||
| + | ^ | Orange | | ||
| + | |||
| + | ==== INTEL ==== | ||
| There are two standards for IDC-to-DB9, one is the standard straight-through method, mapping pin n on the IDC to pin n on the DB-9. The other is "Intel" format, which does a completely daft mapping. This is explained [[http://www.scantips.com/serial-db9.html | here]]. | There are two standards for IDC-to-DB9, one is the standard straight-through method, mapping pin n on the IDC to pin n on the DB-9. The other is "Intel" format, which does a completely daft mapping. This is explained [[http://www.scantips.com/serial-db9.html | here]]. | ||
| + | You can detect this by measuring the voltage between pin 5 and pins 2 and 3, one of which should be positive and one negative. In the Intel configuration, pin 5 isn't ground, and the voltage on pins 2 and 3 will have the same sign. | ||
| + | |||
| + | ^ DB9 Pin ^ Color ^ | ||
| + | ^ 1 | | | ||
| + | ^ 2 | Green | | ||
| + | ^ 3 | Red | | ||
| + | ^ 4 | Brown | | ||
| + | ^ 5 | | | ||
| + | ^ 6 | Yellow | | ||
| + | ^ 7 | Blue | | ||
| + | ^ 8 | Black | | ||
| + | ^ 9 | Gray | | ||